Low-cost compact sensors for ultrasmall systems are a pressing need in many new applications. One potential solution is a shallow aspect ratio system using a lenslet array to form multiple undersampled subimages of a scene on a single focal plane array, where processing techniques then produce an upsampled restored image. We have investigated the optimization and theoretical limits of the performance of such arrays. We have built a hardware simulator and developed algorithms to process imagery similar to that of a full lenslet imaging sensor, which allowed us to quickly test optical components, algorithms, and complete system designs for future lenslet imaging systems.
© 2007 Optical Society of America
Original Manuscript: November 20, 2006
Manuscript Accepted: March 7, 2007
Published: June 20, 2007
A. V. Kanaev, D. A. Scribner, J. R. Ackerman, and E. F. Fleet, "Analysis and application of multiframe superresolution processing for conventional imaging systems and lenslet arrays," Appl. Opt. 46, 4320-4328 (2007)